/Engine/Source/Developer/TargetPlatform/Public/Interfaces/ITargetPlatform.h
Checks whether the platform's build requirements are met so that we can do things like package for the platform.
A mask of ETargetPlatformReadyStatus flags to indicate missing requirements, or 0 if all requirements are met.
int32 CheckRequirements ( bool bProjectHasCode, EBuildConfiguration Configuration, bool bRequiresAssetNativization, [FString](API\Runtime\Core\Containers\FString) & OutTutorialPath, [FString](API\Runtime\Core\Containers\FString) & OutDocumentationPath, [FText](API\Runtime\Core\Internationalization\FText) & CustomizedLogMessage ) const